As a diligent physics student, you carry out physics experiments at every opportunity. At this opportunity, you carry a 1.29 m long rod as you jog at 3 .15 m/s, holding the rod perpendicular to your direction of motion. What is the magnitude B of the magnetic eld that is perpendicular to both the rod and your direction of motion and that induces an EMF of 0.261 mV across the rod? Express the answer in milliteslas